{"id":153102,"date":"2025-12-30T17:11:55","date_gmt":"2025-12-30T15:11:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-net-snmp-dopuskayushhaya-udalyonnoe-vypolnenie-koda"},"modified":"2025-12-30T17:11:55","modified_gmt":"2025-12-30T15:11:55","slug":"uyazvimost-v-net-snmp-dopuskayushhaya-udalyonnoe-vypolnenie-koda","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/uyazvimost-v-net-snmp-dopuskayushhaya-udalyonnoe-vypolnenie-koda","title":{"rendered":"Zranite\u013enos\u0165 v Net-SNMP, ktor\u00e1 umo\u017e\u0148uje vzdialen\u00e9 vykon\u00e1vanie k\u00f3du","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V bal\u00edku Net-SNMP, ktor\u00fd implementuje protokoly SNMP v1, SNMP v2c a SNMP v3, bola zisten\u00e1 zranite\u013enos\u0165 (CVE-2025-68615), ktor\u00e1 umo\u017e\u0148uje dosiahnu\u0165 vzdialen\u00e9 vykon\u00e1vanie k\u00f3du na serveri, ktor\u00fd pou\u017e\u00edva slu\u017ebu snmptrapd na prij\u00edmanie a spracovanie trap spr\u00e1v od zariaden\u00ed. Slu\u017eba predvolene prij\u00edma po\u017eiadavky na UDP porte 162 a je sp\u00fa\u0161\u0165an\u00e1 s pr\u00e1vami root. Probl\u00e9m bol ozna\u010den\u00fd ako kritick\u00fd (9.8 z 10). \u00datok m\u00f4\u017ee by\u0165 vykonan\u00fd bez prechodu autentifik\u00e1ciou. <\/p>\n

Zranite\u013enos\u0165 je sp\u00f4soben\u00e1 nespr\u00e1vnou kontrolou ve\u013ekosti OID (\"trapOidLen >= 0\" namiesto \"trapOidLen > 0\") pred kop\u00edrovan\u00edm \u00fadajov uveden\u00fdch v pakete do vyrovn\u00e1vacej pam\u00e4te pevnej ve\u013ekosti. Prenos \u0161peci\u00e1lne upraven\u00fdch bal\u00edkov vedie k prepisovaniu \u00fadajov za hranicou vyrovn\u00e1vacej pam\u00e4te trapOid, \u010do m\u00f4\u017ee by\u0165 zneu\u017eit\u00e9 na vykonanie k\u00f3du \u00fato\u010dn\u00edka s pr\u00e1vami, pod ktor\u00fdmi je proces snmptrapd vykon\u00e1van\u00fd. Zranite\u013enos\u0165 bola odstr\u00e1nen\u00e1 vo verzi\u00e1ch Net-SNMP 5.9.5 a 5.10.pre2. Ako dodato\u010dn\u00e1 ochrana sa odpor\u00fa\u010da zablokova\u0165 pr\u00edstup z extern\u00fdch siet\u00ed k UDP portu 162 na firewallu.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u043f\u0430\u043a\u0435\u0442\u0435 Net-SNMP, \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u044e\u0449\u0435\u043c \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u044b SNMP v1, SNMP v2c \u0438 SNMP v3, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2025-68615), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0435\u043c \u0441\u0435\u0440\u0432\u0438\u0441 snmptrapd \u0434\u043b\u044f \u043f\u0440\u0438\u0451\u043c\u0430 \u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 trap-\u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0439 \u043e\u0442 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432. \u041f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0441\u0435\u0440\u0432\u0438\u0441 \u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0435\u0442 \u0437\u0430\u043f\u0440\u043e\u0441\u044b \u043d\u0430 162 UDP-\u043f\u043e\u0440\u0442\u0443 \u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u0442\u0441\u044f \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 root. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0435 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (9.8 \u0438\u0437 10). \u0410\u0442\u0430\u043a\u0430 \u043c\u043e\u0436\u0435\u0442 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-153102","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Zranite\u013enos\u0165 v Net-SNMP, ktor\u00e1 umo\u017e\u0148uje vzdialen\u00e9 vykon\u00e1vanie k\u00f3du | ProHoster","description":"V bal\u00edku Net-SNMP, ktor\u00fd implementuje protokoly SNMP v1, SNMP v2c a SNMP v3, bola zisten\u00e1 zranite\u013enos\u0165 (CVE-2025-68615), ktor\u00e1 umo\u017e\u0148uje dosiahnu\u0165 vzdialen\u00e9 vykon\u00e1vanie k\u00f3du na serveri, ktor\u00fd pou\u017e\u00edva slu\u017ebu 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